For F&O positions, minimum 50% margin should come in cash or equivalent and remaining 50% can come from collateral margin.
If you use excess collateral margin ie. > 50% then there will be interest charged at 0.05% per day on excess margin.
You can use full collateral margin received from pledging Liquid Bees, as it is considered as cash equivalent.
Though, do have some cash in your account to cover losses and charges arising from trading, as collateral margin cannot be use towards this.
Yes.